KR100215148B1 - 광기록 운반체의 스케닝 회로장치 - Google Patents

광기록 운반체의 스케닝 회로장치 Download PDF

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Publication number
KR100215148B1
KR100215148B1 KR1019930700987A KR930700987A KR100215148B1 KR 100215148 B1 KR100215148 B1 KR 100215148B1 KR 1019930700987 A KR1019930700987 A KR 1019930700987A KR 930700987 A KR930700987 A KR 930700987A KR 100215148 B1 KR100215148 B1 KR 100215148B1
Authority
KR
South Korea
Prior art keywords
control
temperature
scanning
optical
scanning device
Prior art date
Application number
KR1019930700987A
Other languages
English (en)
Korean (ko)
Inventor
안드레아스뢰진게르
겐테르노에브셀
Original Assignee
클라우스 포스, 게오르그 뮐러
로베르트 보쉬 게엠베하
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 클라우스 포스, 게오르그 뮐러, 로베르트 보쉬 게엠베하 filed Critical 클라우스 포스, 게오르그 뮐러
Application granted granted Critical
Publication of KR100215148B1 publication Critical patent/KR100215148B1/ko

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0946—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for operation during external perturbations not related to the carrier or servo beam, e.g. vibration

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
KR1019930700987A 1990-10-17 1991-09-19 광기록 운반체의 스케닝 회로장치 KR100215148B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEP4032871.6 1990-10-17
DE4032871A DE4032871A1 (de) 1990-10-17 1990-10-17 Schaltungsanordnung zur abtastung optischer aufzeichnungstraeger
PCT/DE1991/000746 WO1992007357A1 (de) 1990-10-17 1991-09-19 Schaltungsanordnung zur abtastung optischer aufzeichnungsträger

Publications (1)

Publication Number Publication Date
KR100215148B1 true KR100215148B1 (ko) 1999-08-16

Family

ID=6416412

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019930700987A KR100215148B1 (ko) 1990-10-17 1991-09-19 광기록 운반체의 스케닝 회로장치

Country Status (5)

Country Link
US (1) US5343459A (ja)
JP (1) JP3193043B2 (ja)
KR (1) KR100215148B1 (ja)
DE (3) DE4032871A1 (ja)
WO (1) WO1992007357A1 (ja)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4218219C2 (de) * 1992-06-03 1998-05-07 Geyer Medizin Und Fertigungste Vorrichtung zum berührungslosen Vermessen eines schlecht zugänglichen, dreidimensionalen medizinischen oder zahntechnischen Objektes
JPH07130080A (ja) * 1993-11-02 1995-05-19 Olympus Optical Co Ltd 情報記録装置
DE19640870A1 (de) * 1996-10-04 1998-04-09 Thomson Brandt Gmbh Aufzeichnungs- oder Wiedergabegerät für optische Informationsträger mit einem Servo-Regelkreis und Verfahren zur Fehlersignalbehandlung in einem solchen

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574371A (en) * 1982-02-20 1986-03-04 Olympus Optical Company Limited Apparatus for recording and reproducing information on an optical disc
JPS59146069A (ja) * 1983-02-08 1984-08-21 Canon Inc 光源安定化装置
US4834477A (en) * 1984-07-05 1989-05-30 Ricoh Company, Ltd. Method of controlling the temperature of semiconductor laser in an optical device
JPS6190540A (ja) * 1984-10-09 1986-05-08 Olympus Optical Co Ltd 光出力安定化装置
US4817098A (en) * 1985-05-17 1989-03-28 Fuji Photo Film Co., Ltd. Semiconductor laser driver system
JPS61265885A (ja) * 1985-05-20 1986-11-25 Nec Corp 半導体レ−ザ及びその駆動方法
JPH0758556B2 (ja) * 1988-03-22 1995-06-21 アルパイン株式会社 光学式ディスクプレーヤ
EP0387052B1 (en) * 1989-03-09 1995-09-20 Canon Kabushiki Kaisha Magneto-optical recording apparatus having means for delaying an input signal for preventing bit shift
KR100254716B1 (ko) * 1990-04-05 2000-05-01 이데이 노부유끼 광학식 디스크상의 정보기록 및 재생장치

Also Published As

Publication number Publication date
DE4192604D2 (en) 1993-05-13
JP3193043B2 (ja) 2001-07-30
DE4032871A1 (de) 1992-04-23
US5343459A (en) 1994-08-30
DE4192604C1 (de) 1996-12-05
JPH06501806A (ja) 1994-02-24
WO1992007357A1 (de) 1992-04-30

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A201 Request for examination
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee